Marko Grujic of Serbia (R) leads teammates as they celebrate their victory during a penalty shootout during the FIFA U20 World CupGetty

Red Star Belgrade sporting director Zvezdan Terzic has said Marko Grujic will sign a contract with Liverpool in the "next three days". The teenager is set to become Reds manager Jurgen Klopp's first signing since he replaced Brendan Rodgers earlier in October.

The Merseyside club's chief Ian Ayre flew to Belgrade to seal the transfer of the young starlet. According to the Mirror, Liverpool are set to pay a transfer fee of £5m ($7.5m) in order to bring him to the Premier League.

Terzic confirmed Grujic will sign a five-year contract with the English outfit and earn €1.2m a year (£0.8m, $1.3m) at Liverpool. In addition to this, the 19-year-old will wear the No 8 shirt, which was worn by Steven Gerrard until the end of the last season as he left England and joined the Major League Soccer side LA Galaxy on a free transfer in the summer.

"We will in the next three days sign a contract with Liverpool," Terzic said on national Serbian TV, as quoted by Goal.com. "It was a record transfer. Marko Grujic will sign a five-year contract with Liverpool where he will have a €1,200,000 annual net income, which means that he will have six million from Liverpool. He'll get eight on the back."

Grujic came up through the ranks of Red Star's youth setup, before breaking into the first team at the age of 17 in May 2013. He was also part of Serbia's Under-20 squad, which won the Fifa Under-20 World Cup in New Zealand in June.

The highly-rated midfielder has scored five goals in the league this term. Grujic has played a key role in his side's brilliant run in the Serbian SuperLiga as the Red Stars sit on top of the table comfortably with 62 points after 22 games and are so far undefeated in the league.